Window-stop lock.



E. E. KILMER.

WINDOW STOP LOCK. APPLICATION FILED MAILS, 1913.

Patented Feb 17,1914.

1A PLANOGRAPH c0., WASHINGTON, D. c.

ELMER n. KILMER, or CLEVELAND, onIo, ASSIGNOB, no it. o. woonnurr, or CLEVELAND, OHIO.

WINDOVJ-STOP LOCK.

To all whom it may concern Be it known that I, Emma E. KILMER, a citizen of the United States of America, residing at 7408 Cedar avenue, Cleveland, in the county of Cuyahoga and State of Ohio,

have invented certain new and useful Improvements in Window- Stop Locks, of which the following is a specification.

This invention relates to a new and useful improvement in devices for locking in place the stop of a window sash after the sash has been put into place and the stop put into the window frame. It relates more particularly to a device designed to be used with stops which are used in windows where the sashes are so constructed that they may be removed from the window frames by being swung downwardly and then withdrawn. In such construction the stops have to be removed and then replaced. It is, therefore, desirable to have a catch for the stop which may be quickly released, readily fasten itself and be safe from unintentional unfastening.

To this end the invention consists in a catch which automatically fastens and unfastens as the stop is. moved and yet is safe against unintentional unfastening.

In the annexed drawings: Figure 1 represents a vertical sectional view of a window frame provided with the invention. Fig. 2 is a horizontal section of the device. Fig. 3 is a horizontal section of a modification.

In these drawings: the numeral 1 designates a window frame having the upper and lower sashes 2 and 3. To the lower sash 3 is applied the stop A. To such a stop the catch is to be applied.

In the window frame 1 at a suitable place adjacent to the sash is made a recess 5, one on each side, as the use of the device is duplicate, though one only is shown. Over this recess 5 is secured a portion of the catch. This is a flat plate 6 having an elastic tongue 7, which may be made by being struck out of the plate 6, leaving a slot 8 of the configuration of the tongue 7 and in front of and alined with said tongue 7. This tongue 7 has at the end where it joins the plate the portion 9 which is curved outwardly and backwardly from the plate 6 and an extension 10 substantially arallel with the plate 6. The portion 9 orms a curved inclined surface leading from the plate 6 at the end of the slot 8 thus forming Specification of Letters Patent.

Application filed March 8, 1913.

Patented Feb. 17, 1914.

Serial No. 753,015.

a curved guiding surface. The tongue is wider at its curved portion 9 and the extension 10 is narrow, leaving in the plate an elongated extension 11 of the slot 8. As

shown in Fig. 1, this plate is placed so that the extension 11 is toward the sash when the latter is in place in the frame.

The stop 1 is provided, at a place to register with the plate 6, with a catch 12. This consists of a bolt 13 passing through the stop 4, surrounded by a spring lt in a recess 15 in said stop A and having a handle 16 on the outside of the stop and a head 17 on the inside of the stop. The head 17 is rounded on the outside and has a shank 18. Normally the spring 1A keeps the head protruded beyond the face of the stop about the thickness of the plate 6. The handle 16 is adjustable on the bolt 13 whereby may be varied tension on the spring 14 which bears between the shank 18 and the bottom 19 of the recess 15. Also by means of the adjustable handle 16 the head 17 may be clamped. against the plate 6. Also allowance may be made for difierence in fit in old window construction. As the stop is moved into place the rounded head 17 of the bolt 13 is first forced downwardly against the pressure of the spring 14. When the head 17 reaches the enlarged portion of the slot 8 the spring 14 forces the head 17 through the slot and as the stop is moved farther the head 17 slides along the curved guiding surface of the curved portion 9 of the elastic tongue 7 and when the stop is finally into place the head 17 catches behind the plate 6, the shank 18 resting in the extension 11 of the slot 8. When it is desired to remove the stop 4 it is merely pulled outwardly, the rounded head 17 gliding over the curved portion 9 of the tongue 7 and moving out of connection with the plate 6. This forms a longitudinally retractile catch which is automatically operative, whether the stop be moved into or fromthe window frame.

At the bottom of Fig. 1 and in Fig. 3 is shown a modification. The catch secured to the stop at is substantially identical with that used with the plate shown in Fig. 2. But the plate attached to the window frame is somewhat different in construction. The plate 20 has a tongue 21 punched out, the tongue being T-shaped, having the stem 22 and head 23. The stem 22 is slightly curved, as indicated in Fig. 3, and the head 23 is at a right angle to the stem. This plate 20 is put in place as indicated at the bottom of Fig. l, the stem 22 being vertical. The stop is put into place by moving the head 17 down the stem and against the head 23. This plate 20 not only serves with the catch on the stop to lock the stop in place, but, by reason of the slot 24, where the head 23 is cut out, the catch may be placed in difterent positions so that the stop l may be inclined outwardly, permitting the sash to be swung outwardly and held at any desired angle.

Having described the invention, what I claim is:

1. A window stop lock consisting of a flat plate having a slot, an elastic tongue composed of a curved portion and a straight portion, the curved portion secured to the plate and the straight portion extending back of the plate and in line with the slot and a catch bolt having a shank adapted to it the slot and a head rounded on the outside and adapted to press on the tongue and to catch between the plate and the straight portion of the tongue.

2. A window stop lock consisting of a flat plate having a tongue composed of a curved portion and a straight portion, a slot in front of and alined with the tongue, a longi tudinally retractile catch, provided with a rounded head adapted to the tongue and slot.

3. A window stop lock consisting of a flat plate having a tongue composed of a curved portion and a straight portion and joined at its curved portion to the plate and its straight portion loose, a slot in front of and alined with the tongue and a catch composed of a bolt having a rounded head adapted to the tongue and slot and a stem with a spring surrounding the stem and adapted to bear against the head.

4. A window stop lock consisting of a fiat plate having a slot, an elastic tongue in front of and alined with the slot the said tongue joined to the flat plate at one end of the slot and composed of a portion curved outwardly and backwardly from the plate and having an inclined surface leading from the plate at the end of the slot and forming a guiding surface and an extension and a longitudinally retractile catch provided with a head adapted to the tongue and slot.

In testimony whereof I aflix my signature in presence of two witnesses.

ELMER E. KILMER.

Witnesses WM; P. MAYER, D. H. HOPKINS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

